From: Wichert Akkerman <wichert@wiggy.net>
To: Jim Nelson <james4765@verizon.net>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Question about /dev/mem and /dev/kmem
Date: Mon, 29 Nov 2004 13:36:29 +0100 [thread overview]
Message-ID: <20041129123629.GP31995@wiggy.net> (raw)
In-Reply-To: <41AAFE4E.7010308@verizon.net>
Previously Jim Nelson wrote:
> Isn't that /proc/sys/kernel/cap-bound?
yes, it is.
> And what stops an attacker who's already gained root from doing a "cat "0"
> > /proc/sys/kernel/cap-bound" ?
The fact that you are not allowed to change the cap-bound settings with
that specific bitmask.
Wichert.
--
Wichert Akkerman <wichert@wiggy.net> It is simple to make things.
http://www.wiggy.net/ It is hard to make things simple.
prev parent reply other threads:[~2004-11-29 12:40 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-11-29 3:57 Question about /dev/mem and /dev/kmem Jim Nelson
2004-11-29 4:45 ` Matan Peled
2004-11-29 8:04 ` Arjan van de Ven
2004-11-29 9:39 ` Wichert Akkerman
2004-11-29 10:47 ` Jim Nelson
2004-11-29 11:45 ` Alan Cox
2004-11-29 12:36 ` Wichert Akkerman [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20041129123629.GP31995@wiggy.net \
--to=wichert@wiggy.net \
--cc=james4765@verizon.net \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.